Rio de Janeiro Weather in September
What's the weather like in Rio de Janeiro (Rio de Janeiro) in September 2024?
The climate in Rio de Janeiro during September can be summarized as warm, humid and a little damp.
September is in the spring in Rio de Janeiro and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a muggy 25°C (77°F), whilst at night 17°C (63°F) is normal.
| Daytime temperature | 25.1°C 77.1°F |
|---|---|
| Nightly temperature | 17°C 62.5°F |
| Average temperature | 21°C 69.8°F |
| Daily sunshine | 5.1 hrs |
| Avg rainfall | 96 mm 3.8 ins |
| Rainy days | 12 days |
| Sea temperature | 21.9°C 71.5°F |
| Humidity | 79% |
| Windspeed | 9kph 6 mph |
On average September is the 4th driest month of the year in Rio de Janeiro with around 96mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.1 hours of sunshine per day.
September temperatures in Rio de Janeiro
September rainfall
September hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Rio de Janeiro in September 2024.
Other monthly averages
Best places to visit in September
Rio de Janeiro weather stats
| Hottest month: | February | 29.9°C 85.8°F |
|---|---|---|
| Driest month: | July | 66mm 2.6ins |
| Sunniest month: | July | 6.6hrs |
| Coldest month: | July | 24.2°C 75.6°F |
| Wettest month: | December | 207mm 8.1ins |
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